$A$ particle is moving in a circle with uniform speed. Its motion is

What is uniform circular motion? Write the formula for centripetal acceleration in uniform circular motion.

The angular speed of the seconds needle in a mechanical watch is:

The angle between velocity and acceleration of a particle describing uniform circular motion is (in $^{\circ}$)

$A$ particle is performing uniform circular motion along the circumference of a circle of diameter $1 \ m$ with a frequency of $4 \ Hz$. The acceleration of the particle in $m/s^2$ is (in $\pi^2$)

$A$ cyclist starts from the centre $O$ of a circular park of radius $1\, km$ and moves along the path $OPRQO$ as shown in the figure. If he maintains a constant speed of $10\, m/s$,what is his acceleration at point $R$ in magnitude and direction?